山东惠民凹陷古近系风暴岩沉积特征及沉积模式
- 中国石油大学(华东)地球资源与信息学院 山东东营 257061
- 收稿日期:
1900-01-01
- 修回日期:
1900-01-01
- 刊出日期:
2006-02-10
摘要: 利用钻井取心、薄片鉴定、粒度分析及测井解释等资料和手段，对惠民凹陷古近系风暴岩进行研究。结果表明，该凹陷风暴岩岩石类型丰富，包括各类碎屑岩、生物灰岩和火山碎屑岩。粒度分布具有“高斜多跳一悬式”、多段式和高斜一段式等多种样式。沉积构造也反映出重力流和牵引流兼有的水动力机制，发育渠模、冲刷面和截切构造等底层面侵蚀构造，递变层理、块状层理、丘状层理、洼状层理、平行层理等层理构造，波痕和各种同生变形构造、生物逃逸构造等。研究区风暴岩理想的垂向层序从下至上可抽象为“似鲍玛序列”：Sa递变层理段，Sb较大型浪成交错层理段，Sc平行层理段和丘状交错层理粉砂—细砂岩段，Sd波状纹层段，Se泥岩段和Sf正常半深湖泥页岩段。主要根据风暴岩的垂向序列类型、沉积构造特点和原地沉积物特征等总结出九种风暴岩序列和原地风暴岩、A型近源风暴岩、B型近源风暴岩和远源风暴岩等四种风暴岩沉积模式。
The Sedimentary Characteristics and Models of Paleogene Tempestites in Huimin Sag, Shandong Province
- College of Earth Resource and Information, China University of Petroleum,Dongying, Shandong 257061
- Received Date:
1900-01-01
- Rev Recd Date:
1900-01-01
- Publish Date:
2006-02-10
Abstract: The tempestites of Paleogene in Huimin sag was discussed based on cores, rock thin section, granularity analysis and log data. It can be seen that the tempestites in the area studied exist lots of rock types, such as clastic rocks, bioclastic limestone and volcaniclastic rock. The cumulative probability plots and sedimentary structures reflect that the transportation medium has characters of tractive current and gravity flow synchronously. The former has “high slopemultibouncing population1 suspension population” pattern, multisegments pattern and “high slope 1 segment” pattern. The latter has gutter cast, surface of scour, graded bed, massive bedding, hummocky cross stratification (HCS), parallel bedding, ripples, contemporaneous deformation and Fugichnia. The vertical sequence of the tempestites in the study area is Sa1graded bed segment, Sa2homogeneous bedding segment, Sbbiggish waveripple bedding segment, Scparallel bedding and HCS segment, Sdwavy bedding segment, Semudstone segment and Sfnatural lake facies clay rock segment upwards. There are four sedimentary models including autochthonous coarse grain rocks, near source tempestites A, near source tempestites B and distal tempestites .
袁 静. 山东惠民凹陷古近系风暴岩沉积特征及沉积模式[J]. 沉积学报, 2006, 24(1): 43-49.
| 引用本文: |
袁 静. 山东惠民凹陷古近系风暴岩沉积特征及沉积模式[J]. 沉积学报, 2006, 24(1): 43-49.
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YUAN Jing. The Sedimentary Characteristics and Models of Paleogene Tempestites in Huimin Sag, Shandong Province[J]. Acta Sedimentologica Sinica, 2006, 24(1): 43-49.
| Citation: |
YUAN Jing. The Sedimentary Characteristics and Models of Paleogene Tempestites in Huimin Sag, Shandong Province[J]. Acta Sedimentologica Sinica, 2006, 24(1): 43-49.
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